Dry desulfurization agent with good dispersibility and preparation method thereof
A technology of dry desulfurization and desulfurization agent, which is applied in the direction of separation methods, chemical instruments and methods, and separation of dispersed particles, can solve the problems of low efficiency of dry desulfurization agents, and achieve simple and easy desulfurization methods, low desulfurization temperature, and easy Handle the effect of regeneration
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[0023] The invention provides a dry desulfurizing agent with good dispersibility and a preparation method thereof. The dry desulfurizing agent comprises the following components in weight percent: 30-50% of baking soda, 20-40% of adsorbent, 5-5% of magnesium oxide 25%, urea 5-8%, iron oxide 5-8%, talcum powder 0.5-2%. Preferably, the mass fraction of baking soda is 35-45%, the mass fraction of adsorbent is 25-35%, the mass fraction of magnesium oxide is 10-20%, the mass fraction of urea is 6-7%, and the mass fraction of iron oxide The mass fraction of talcum powder is 1-1.5%.
[0024] Wherein, the adsorbent can be one or more of activated carbon, activated coke or activated carbon fiber. The activated carbon component can be obtained by carbonizing or activating one or more of biomass semi-cokes such as sawdust and fruit shells, lignite and sub-bituminous coal semi-cokes, and petroleum coke activated coke. Activated carbon and magnesium oxide are added to the dry desulfurize...
Embodiment 1
[0033] A dry desulfurizer with good dispersibility, comprising the following components in weight percentage: 45.5% by mass of baking soda, 35% by mass of activated carbon, 5% by mass of magnesium oxide, and 7% by mass of urea %, the mass fraction of iron oxide is 6%, and the mass fraction of talcum powder is 1.5%.
[0034] The preparation method of above-mentioned dry method desulfurizer, comprises the steps:
[0035] Step 1: Coarsely grind baking soda, adsorbent, magnesium oxide, urea, iron oxide and talcum powder to 40-200 μm;
[0036] Step 2: Mix baking soda, adsorbent, magnesium oxide, urea, iron oxide and talcum powder according to the above ratio, and stir evenly;
[0037] Step 3: Finely grind the mixture obtained in Step 2 to ensure that each component is fully mixed and reacted, and sieve the mixture with a particle size of 10-40 μm, which is the desulfurizer. When the particle size is 20-30 μm, the desulfurization effect of the dry desulfurizer is better.
Embodiment 2
[0039] A dry desulfurizer with good dispersibility, comprising the following components by weight percentage: 50% by mass of baking soda, 25% by mass of activated carbon, 10% by mass of magnesium oxide, and 8% by mass of urea %, the mass fraction of iron oxide is 5%, and the mass fraction of talcum powder is 2%.
[0040] The preparation method of above-mentioned dry method desulfurizer, comprises the steps:
[0041]Step 1: Coarsely grind baking soda, adsorbent, magnesium oxide, urea, iron oxide and talcum powder to 40-200 μm;
[0042] Step 2: Mix baking soda, adsorbent, magnesium oxide, urea, iron oxide and talcum powder according to the above ratio, and stir evenly;
[0043] Step 3: Finely grind the mixture obtained in Step 2 to ensure that each component is fully mixed and reacted, and sieve the mixture with a particle size of 10-40 μm, which is the desulfurizer. When the particle size is 20-30 μm, the desulfurization effect of the dry desulfurizer is better.
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